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Install in OpenClaw
/install feishu-sender
Description
Send messages and files to Feishu (Lark) via Open API. Supports text, markdown, any file format, and images. Use when user needs to send notifications, repor...
README (SKILL.md)
Feishu Sender
飞书（Lark）消息发送工具，支持主动推送文本、文件和图片到指定群聊。
Quick Start
from feishu_sender import FeishuSender
sender = FeishuSender()
sender.send_text("Hello Feishu!")
sender.send_file("report.pdf")
CLI Usage
python3 scripts/send.py --text "Hello"
python3 scripts/send.py --file report.pdf
python3 scripts/send.py --text "Report" --files "a.docx,b.pdf"
Configuration
Set environment variables or create .env:
FEISHU_APP_ID=cli_xxxxx
FEISHU_APP_SECRET=xxxxxxxx
FEISHU_CHAT_ID=oc_xxxxxx
Get credentials from Feishu Open Platform.
Resources
feishu_sender.py- Core module with FeishuSender classscripts/send.py- CLI entry point
Usage Guidance
This skill appears to do what it says: send messages and files to Feishu. Before installing or using it: (1) verify the FEISHU_APP_ID/SECRET and chat ID come from a dedicated Feishu app with minimal permissions; (2) review the included Python code if you don't trust the publisher (it will upload any file path you supply and will load a .env file into your environment); (3) ensure the runtime has the 'requests' package available or install it in an isolated environment; (4) avoid passing sensitive local files to the CLI unless you intend to transmit them; and (5) prefer creating an app/credentials with least privilege and monitor outgoing traffic to open.feishu.cn. If you want extra assurance, run the code in a disposable/isolated environment and inspect network requests.
Capability Analysis
Type: OpenClaw Skill
Name: feishu-sender
Version: 1.0.1
The skill bundle is a legitimate implementation for sending messages and files to Feishu (Lark) using its official API (open.feishu.cn). It handles authentication via environment variables, supports various message types (text, file, image, markdown), and contains no evidence of data exfiltration, malicious execution, or prompt injection. While there is a minor code redundancy (the _upload_image method is defined twice in feishu_sender.py), the logic is transparent and aligned with the stated purpose.
Capability Assessment
Purpose & Capability
Name/description (send messages/files to Feishu) match the declared env vars (FEISHU_APP_ID, FEISHU_APP_SECRET, FEISHU_CHAT_ID) and the included code implements token retrieval, file/image upload, and message sending to open.feishu.cn.
Instruction Scope
SKILL.md and the CLI instruct setting FEISHU env vars or a .env file and calling the CLI or library. The code will read any file paths you pass (to upload/send) and will optionally load a provided .env file into os.environ — this is expected for a sender but means the skill will transmit any local file you explicitly provide.
Install Mechanism
No install spec (instruction-only). The code uses the requests library but no installer is declared. No remote download URLs or archive extraction are present.
Credentials
Only FEISHU_APP_ID, FEISHU_APP_SECRET, and FEISHU_CHAT_ID are required — these are the expected credentials for Feishu Open API. The code does not request additional unrelated secrets or config paths.
Persistence & Privilege
Skill is not always-enabled and does not request system-wide persistence or modify other skills. It runs only when invoked and performs network calls to the official Feishu Open API domain.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install feishu-sender - After installation, invoke the skill by name or use
/feishu-sender - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.1
Add metadata for required credentials
v1.0.0
Initial release: Send messages and files to Feishu/Lark
Metadata
Frequently Asked Questions
What is Feishu Sender?
Send messages and files to Feishu (Lark) via Open API. Supports text, markdown, any file format, and images. Use when user needs to send notifications, repor... It is an AI Agent Skill for Claude Code / OpenClaw, with 351 downloads so far.
How do I install Feishu Sender?
Run "/install feishu-sender" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Feishu Sender free?
Yes, Feishu Sender is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Feishu Sender support?
Feishu Sender is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Feishu Sender?
It is built and maintained by Tim (@zhendexuebuhui); the current version is v1.0.1.
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